Hi, i'm a beginner at vfp please help me if you can. I've added an optiongroup in a grid with the following commands.

WITH THISFORM.grid2.column2
.ADDOBJECT('optgrp','optiongroup')
.CONTROLSOURCE=lifecard2.attend
.CURRENTCONTROL = 'optgrp'
.optgrp.buttoncount = 3
.optgrp.buttons (1).caption = 'A'
.optgrp.buttons (2).caption = 'B'
.optgrp.buttons (3).caption = 'C'
.optgrp.buttons (1).left = 10
.optgrp.buttons (1).top = 10
.optgrp.buttons (2).top = 10
.optgrp.buttons (2).left = 50
.optgrp.buttons (3).left = 90
.optgrp.buttons (3).top = 10
.optgrp.VISIBLE=.T.
.sparse = .f.
ENDWITH

there seem to be a problem with it. When i run the form, no option button has been selected although there is values from 1-3 inside the table. When i clicked on them, the values of the field attend in table lifecard do not change and remains the same value. Had been trying to solve this for quite some time, help will be greatly appreciated. Thanks in advance.